[Fischkiller]

I´m searching for the reaction of pyrrole + p-tert-butylbenzaldehyde. I´m pretty sure they form a macrocyclic ring (maybe 4 molecules each, but Ì´m not sure). The formula has got to be somewhere around C60H60N4, so it cant be an amide, because theres no oxygen in the macrociclic system. During the cyclication, an oxidation in form of a dehydration takes place, although I dont know when and where. Has anyone got any ideas???